Ventilator



( No Model.)

J. BLUHM. VEl\I'l`ILAT0RIv No. 415,264. Patented Nov. 19, 1889.

4llNrrnD STATES 'PATENT'V OFFICE.

JULIUS BLUHM, OF CHICAGO, ILLINOIS.

VENTILATOR.

SPECIFICATION forming part of Letters Patent No. 415,264, dated November 19, 1889.

Application filed Apn'llZ, 1889. Serial No. 307,055. (No model.)

To all whom t may concern:

Be it known that I, JULIUS BLUHM, residing at Chicago, in t-he county of Cook and State of Illinois, and a subject of the Emperor ot' Germany, have invented a new and useful Improvement in Ventilators, of which the following is a specilication, reference being had to the accompanying drawings, in which- Figure 1 is a front elevation showing the ventilator-sections closed. Fig. 2 is a section at line 2 2 of Fig. 1, looking to the left, the ventilator-sections being partly opened. Fig. 3 is a detail, being a sectional view of one of the glass-supports, with other parts in elevation.v Fig. 4 is a detail showing the manner of supporting the rock-shaft. Fig. 5 is a view of one of the glass-supports.

This invention relates to ventilators for use in various places, and has for its object t0 construct a ventilator that can be used without obstructing the light, and which can be easily applied and readily operated and adjusted; and its nature consists in the several parts and combinations of parts hereinafter described, and pointed out in the claims as new.

In the drawings, A represents a frame, of iron or other suitable material.

a, are forwardly-projecting eyes suitably secured to the lower cross-piece of the frame A, one near each corner.

B is arock-shaft supported in the eyes a. It is provided with a lever b at about its center and at each end with an arm c.

The lower right-hand corner of Fig. 1 is broken away but it is to be understood that an eye'ct and an arm c are to be there provided, as shown at the other corner.

C are bars, one in front of each side piece of the frame A.

D are two links, each being pivotally con- Extending out from each back g is an arm d, which is pivoted at its free end t0 one of the bars C. These supports are pivoted to the side pieces of the frame A by screws or pins k passing through the arms cl. Each side piece h of each support E is cut away at one end (see Z and fm) to allow the strips of glass t0 come together and form a close joint when it is desired to exclude the air.

The supports E are pivoted in position on opposite sides of the frame A, as shown, the number varying with the size of the frame.

F are panes or strips of glass, which are secured obliquely in the supports E, as shown in Figs. 2 and, so that when they are in the position shown in Fig. l their edges will overlap and form a tight joint. They are held in this oblique position by putty placed bet-Ween the glass and the sides h of the supports E. Additional security is given to the glass by the rest t', which projects under the 'lower edge of the glass.

If desired, the frame A can be secured in any suitable wooden frame, which may be a window-sash. A portion of such frame is shown at G. Ordinarily a frame such as G will not be required, as the metal frame A can be applied directly to the place where it is desired to use the ventilator.

When it is desired to open the ventilator, the rock-shaft A is turned to draw down the arms c, which, being pivoted to the links D, pull down the links and the bars C, 'and through the arms d open the ventilator. The ventilator is closed by a reverse movement of the rock-shaft B.

The panes or strips F can be inclined as shown in Fig. 2, or to agreater or less extent, as desired.

This device can be made in various forms and sizes, and can be used in transoms over ing a back g and two sides h, one of which is extended and bent to form a rest i for the edge of the glass, and each side h being out away at one end, substantially as and for the purpose specified.

3. In a Ventilator, the supports E, each having a back g and two sides h, one of which is extended and bent to fol-n1 a rest infor the edge of the glass, and an arm d, substantially as and forl the purpose specified.

JULIUS BLUHM. Vitnesses:

ALBERT H. ADAMS, HARRY T. JONES. 

